CA1226947A - Speech signal coding and/or decoding system - Google Patents

Speech signal coding and/or decoding system

Info

Publication number
CA1226947A
CA1226947A CA000481382A CA481382A CA1226947A CA 1226947 A CA1226947 A CA 1226947A CA 000481382 A CA000481382 A CA 000481382A CA 481382 A CA481382 A CA 481382A CA 1226947 A CA1226947 A CA 1226947A
Authority
CA
Canada
Prior art keywords
lpc
signal
speech signal
label
generating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA000481382A
Other languages
English (en)
French (fr)
Inventor
Tetsu Taguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of CA1226947A publication Critical patent/CA1226947A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • G10L19/07—Line spectrum pair [LSP] vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/0018—Speech coding using phonetic or linguistical decoding of the source; Reconstruction using text-to-speech synthesis

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CA000481382A 1984-05-14 1985-05-13 Speech signal coding and/or decoding system Expired CA1226947A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP96036/1984 1984-05-14
JP59096036A JPS60239798A (ja) 1984-05-14 1984-05-14 音声信号符号化／復号化装置

Publications (1)

Publication Number Publication Date
CA1226947A true CA1226947A (en) 1987-09-15

Family

ID=14154239

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000481382A Expired CA1226947A (en) 1984-05-14 1985-05-13 Speech signal coding and/or decoding system

Country Status (3)

Country Link
US (1) US4975955A (ja)
JP (1) JPS60239798A (ja)
CA (1) CA1226947A (ja)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0634197B2 (ja) * 1985-12-04 1994-05-02 日本電気株式会社 音声符号化方法とその装置
EP0755047B1 (en) * 1990-11-02 2002-04-10 Nec Corporation Speech parameter encoding method capable of transmitting a spectrum parameter at a reduced number of bits
SE467806B (sv) * 1991-01-14 1992-09-14 Ericsson Telefon Ab L M Metod att kvantisera linjespektralfrekvenser (lsf) vid beraekning av parametrar foer ett analysfilter ingaaende i en talkodare
US5450522A (en) * 1991-08-19 1995-09-12 U S West Advanced Technologies, Inc. Auditory model for parametrization of speech
CA2084323C (en) * 1991-12-03 1996-12-03 Tetsu Taguchi Speech signal encoding system capable of transmitting a speech signal at a low bit rate
CA2105269C (en) * 1992-10-09 1998-08-25 Yair Shoham Time-frequency interpolation with application to low rate speech coding
JP2947012B2 (ja) * 1993-07-07 1999-09-13 日本電気株式会社 音声符号化装置並びにその分析器及び合成器
US6044343A (en) * 1997-06-27 2000-03-28 Advanced Micro Devices, Inc. Adaptive speech recognition with selective input data to a speech classifier
US6032116A (en) * 1997-06-27 2000-02-29 Advanced Micro Devices, Inc. Distance measure in a speech recognition system for speech recognition using frequency shifting factors to compensate for input signal frequency shifts
US6067515A (en) * 1997-10-27 2000-05-23 Advanced Micro Devices, Inc. Split matrix quantization with split vector quantization error compensation and selective enhanced processing for robust speech recognition
US6070136A (en) * 1997-10-27 2000-05-30 Advanced Micro Devices, Inc. Matrix quantization with vector quantization error compensation for robust speech recognition
US6240299B1 (en) * 1998-02-20 2001-05-29 Conexant Systems, Inc. Cellular radiotelephone having answering machine/voice memo capability with parameter-based speech compression and decompression
US6219642B1 (en) 1998-10-05 2001-04-17 Legerity, Inc. Quantization using frequency and mean compensated frequency input data for robust speech recognition
US6347297B1 (en) 1998-10-05 2002-02-12 Legerity, Inc. Matrix quantization with vector quantization error compensation and neural network postprocessing for robust speech recognition
US6792405B2 (en) * 1999-12-10 2004-09-14 At&T Corp. Bitstream-based feature extraction method for a front-end speech recognizer
CN101604525B (zh) * 2008-12-31 2011-04-06 华为技术有限公司 基音增益获取方法、装置及编码器、解码器

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3624302A (en) * 1969-10-29 1971-11-30 Bell Telephone Labor Inc Speech analysis and synthesis by the use of the linear prediction of a speech wave
US4301329A (en) * 1978-01-09 1981-11-17 Nippon Electric Co., Ltd. Speech analysis and synthesis apparatus
US4220819A (en) * 1979-03-30 1980-09-02 Bell Telephone Laboratories, Incorporated Residual excited predictive speech coding system
US4270027A (en) * 1979-11-28 1981-05-26 International Telephone And Telegraph Corporation Telephone subscriber line unit with sigma-delta digital to analog converter
US4661915A (en) * 1981-08-03 1987-04-28 Texas Instruments Incorporated Allophone vocoder
US4472832A (en) * 1981-12-01 1984-09-18 At&T Bell Laboratories Digital speech coder
JPS58198095A (ja) * 1982-05-14 1983-11-17 日本電気株式会社 線スペクトル型音声分析合成装置
JPS5912499A (ja) * 1982-07-12 1984-01-23 松下電器産業株式会社 音声符号化装置
US4701955A (en) * 1982-10-21 1987-10-20 Nec Corporation Variable frame length vocoder
CA1197619A (en) * 1982-12-24 1985-12-03 Kazunori Ozawa Voice encoding systems
US4707858A (en) * 1983-05-02 1987-11-17 Motorola, Inc. Utilizing word-to-digital conversion
US4701954A (en) * 1984-03-16 1987-10-20 American Telephone And Telegraph Company, At&T Bell Laboratories Multipulse LPC speech processing arrangement

Also Published As

Publication number Publication date
US4975955A (en) 1990-12-04
JPH0439679B2 (ja) 1992-06-30
JPS60239798A (ja) 1985-11-28

Similar Documents

Publication Publication Date Title
CA1226947A (en) Speech signal coding and/or decoding system
US6732070B1 (en) Wideband speech codec using a higher sampling rate in analysis and synthesis filtering than in excitation searching
US6694292B2 (en) Apparatus for encoding and apparatus for decoding speech and musical signals
Gersho Advances in speech and audio compression
US5001758A (en) Voice coding process and device for implementing said process
US6094629A (en) Speech coding system and method including spectral quantizer
US6345255B1 (en) Apparatus and method for coding speech signals by making use of an adaptive codebook
USRE43099E1 (en) Speech coder methods and systems
EP0415675B1 (en) Constrained-stochastic-excitation coding
US5027405A (en) Communication system capable of improving a speech quality by a pair of pulse producing units
US6169970B1 (en) Generalized analysis-by-synthesis speech coding method and apparatus
JP2008503786A (ja) オーディオ信号の符号化及び復号化
KR100455970B1 (ko) 복잡성이감소된신호전송시스템,전송기및전송방법,인코더및코딩방법
KR100499047B1 (ko) 서로 다른 대역폭을 갖는 켈프 방식 코덱들 간의 상호부호화 장치 및 그 방법
Almeida et al. Harmonic coding: A low bit-rate, good-quality speech coding technique
EP1204092B1 (en) Speech decoder capable of decoding background noise signal with high quality
JP2000214900A (ja) 音声符号化／復号化方法
CA2124713C (en) Long term predictor
JP3088204B2 (ja) コード励振線形予測符号化装置及び復号化装置
JP3232701B2 (ja) 音声符号化方法
JP2968109B2 (ja) コード励振線形予測符号化器及び復号化器
AU617993B2 (en) Multi-pulse type coding system
Yong A new LPC interpolation technique for CELP coders
JPH06195098A (ja) 音声符号化方法
JP3071800B2 (ja) 適応ポストフィルタ

Legal Events

Date Code Title Description
MKEX Expiry